疼痛的用英语怎么说

疼痛的用英语是"painful". 这个词来源于拉丁文 "poena"，原意是"处罚"或"惩罚"，后来发展为指物质或精神上的痛苦或不适。例句如下：
My toothache is really painful. 我的牙疼真的很痛。
The wound looked red and swollen, and it was painful to the touch. 伤口看起来又红又烂，触摸时也很痛。
She suffered from a painful illness for many years. 她患有疼痛难忍的病多年。